MS-PS1-5

Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.

More Stories in MS-PS1-5

  1. Chemistry

    Explainer: Ions and radicals in our world

    When atoms get an electric charge, they act very differently. Now called ions, these are behind many aspects of chemistry, including acids and batteries.

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  2. Chemistry

    This tube worm’s glowing slime may help sustain its own shine

    Snot oozed by a marine tube worm can glow for up to 3 full days. The secret of how this works might lead to long-lasting lights that glow on and on.

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  3. Planets

    Planets with hydrogen skies could harbor life

    Microbes can live in a hydrogen atmosphere. This points to new space worlds that host alien life.

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  4. Climate

    Explainer: The making of a snowflake

    Have you ever wondered how a snowflake gets its shape?

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  5. Physics

    Closing in on fusion energy

    Scientists blasted a tiny capsule of hydrogen with laser beams, setting off a reaction that released more energy than in earlier experiments. Still, scientists remain a long way from creating a reaction that releases more energy than it needs to get started.

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